Filter for 2B1Q signals

Details Filter for 2B1Q signals Filter for 2B1Q signals

1994-03-16

1995-10-24

Malzahn, David H.

Boots, shoes, and leggings

3647505, 370 321, G06F 1710

Patent

active

054615828

ABSTRACT:
A filter is disclosed for filtering 2B1Q coded symbols from the set (-3, -1, +1, +3) to obtain convolutions of the form ##EQU1## without any multiplications by three. The convolution is obtained by using two accumulators to separately accumulate coefficients a.sub.j where the corresponding symbol has a magnitude one and where the corresponding symbol has a magnitude three.

REFERENCES:
patent: 4785445 (1988-11-01), Guidoux
patent: 4926472 (1990-05-01), Batruni et al.
patent: 4931980 (1990-06-01), Rault
patent: 5249179 (1993-09-01), Koyama
patent: 5287299 (1994-02-01), Lin
patent: 5297069 (1994-03-01), Asato et al.

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